Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 23:17

General

  • Target

    rizzler123.exe

  • Size

    839KB

  • MD5

    44656648138039b9c14643dadc0373a8

  • SHA1

    f2ece89a49ab4ba8b2294157637c61624e45b00f

  • SHA256

    2c0b6e9da517e46f5f6ff794dce882f7d90e74323dfd08987a94faf31881f385

  • SHA512

    75fd45754d543aab0a7f1082aaca4549c538379334b0ed7c58793a14550fe6bdb5228a4a58ae016927f37ffdfdca891c110fb8db725a80198d39ed06dc0a5da0

  • SSDEEP

    24576:MxdS04YNEMuExDiU6E5R9s8xY/2l/d2tnIbt+ry:0P4auS+UjfU2T2dIbt+r

Malware Config

Extracted

Family

orcus

C2

7j-manufactured.gl.at.ply.gg

Mutex

acb11a782e7f4efcb23836bd6ceb44ed

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    1

  • change_creation_date

    false

  • force_installer_administrator_privileges

    false

  • hide_file

    false

  • install

    false

  • installation_folder

    %appdata%\Microsoft\Speech\AudioDriver.exe

  • installservice

    false

  • keylogger_enabled

    false

  • newcreationdate

    11/28/2024 15:11:09

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • registry_autostart_keyname

    Audio HD Driver

  • registry_hidden_autostart

    false

  • set_admin_flag

    false

  • tasksch_name

    Audio HD Driver

  • tasksch_request_highest_privileges

    false

  • try_other_autostart_onfail

    false

aes.plain

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rizzler123.exe
    "C:\Users\Admin\AppData\Local\Temp\rizzler123.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

    Filesize

    839KB

    MD5

    44656648138039b9c14643dadc0373a8

    SHA1

    f2ece89a49ab4ba8b2294157637c61624e45b00f

    SHA256

    2c0b6e9da517e46f5f6ff794dce882f7d90e74323dfd08987a94faf31881f385

    SHA512

    75fd45754d543aab0a7f1082aaca4549c538379334b0ed7c58793a14550fe6bdb5228a4a58ae016927f37ffdfdca891c110fb8db725a80198d39ed06dc0a5da0

  • memory/2880-0-0x0000000073F01000-0x0000000073F02000-memory.dmp

    Filesize

    4KB

  • memory/2880-1-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-2-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-12-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-11-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-13-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-14-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-15-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-16-0x0000000073F00000-0x00000000744AB000-memory.dmp

    Filesize

    5.7MB